Unfortunately, at an aggregated level, there is not a report like what you are asking about.
You could run a query against the repo to extract that info fairly easily (by hitting our summary tables), but it would not be something within DPA itself.
For more info about how to query our repo directly, I'd recommend submitting a support case as we'd be sharing parts of our ERD at that point.
OK, thanks for the details. I was able to setup a report that shows similar information from the database waits (which will only work with 50 databases or less).